Daily Kakurasu

About Daily Kakurasu

Kakurasu is a shading puzzle with a bit of addition. The columns are numbered 1, 2, 3 and so on from the left, and the rows from the top. A black cell in a row is worth its column number, and a black cell in a column is worth its row number. Each row has a target on the right and each column a target at the bottom, and you blacken cells until every line adds up exactly.

Puzzle-kakurasu.com has Easy and Hard grids from 4x4 to 9x9, plus Special Daily, Weekly and Monthly puzzles. The daily is one dated grid for everyone; the one for 2 October 2026 was 10 by 10. A click blackens a cell and a right-click marks it with an X. The site shows ads; patrons can turn them off and go back through the last 30 daily puzzles.

Kakurasu sits between number puzzles and shading puzzles, so it suits sudoku players who want something new and nonogram players who like counting along lines. The daily grid is smaller than most of the other specials in this family, which makes it a fair choice for a weekday.

How to play Daily Kakurasu

1. Open puzzle-kakurasu.com and choose Special Daily Kakurasu.
2. Note the values: in a row, a black cell is worth its column number; in a column, it is worth its row number.
3. Click a cell to make it black, and right-click to mark it with an X when it must stay white.
4. Make the black cells in each row add up to the number on the right, and in each column to the number at the bottom.
5. When every line matches its clue, press Done (or Enter) to check the grid.

Tips

• Work out each line's maximum: on a 10x10 grid every row adds up to 55 if fully black, so a clue near 55 tells you which few cells stay white.
• Small clues have few ways to be made: a clue of 1 or 2 is a single cell, and a clue of 3 is either cell 3 or cells 1 and 2.
• A clue larger than the sum of all remaining unknown cells except one forces that cell to be black.
• Write out the possible sets for a line and keep only the ones that agree with the columns crossing it.

Questions